LanguageExplain Like I'm 5Intermediate
Natural Japanese Fluency, a free language course on Tomo

Natural Japanese Fluency

Like Duolingo, but for Natural Japanese Fluency. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

For the part of you with thirty open tabs that never became anything.

A deep dive: 88 levels across 5 sections, about 176 minutes end to end, roughly 35 days at five minutes a day. It moves through Sounding Like a Local, Connecting Complex Thoughts, Navigating Social Situations, Reading Between the Lines, and The Mechanics of Meaning. It assumes you already know the basics.

88 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Koji the Kitsune, the guide who teaches the Natural Japanese Fluency course
Natural Japanese Fluency
with Koji the Kitsune
88
Levels
5
Sections
5
Min/day
What you'll learn

Key ideas in Natural Japanese Fluency

  • Yo is used to provide information the listener doesn't know
  • Ne is used for shared knowledge or seeking agreement
  • Desu alone provides facts without social 'flavor'
  • Particles bridge the gap between speaker and listener
  • Choosing the correct particle based on who has the information
  • Understanding the social consequence of omitting particles
  • Yo adds an assertive 'I'm telling you' tone
  • Ne adds a 'don't you agree?' soft tone
  • Ne invites the listener into the conversation
  • Plain desu sounds like a one-way statement
  • Mapping particles to their social 'vibe'
  • Ne functions like a tag question (right?)
  • Yo can sound like you are lecturing the listener
  • Ne requires a shared experience to feel natural
  • Wrong particles create a 'vibe' mismatch in the social flow
  • Using particles to soften a blunt statement
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Natural Japanese Fluency the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Adding Flavor to Your Sentences

If you are telling a friend about a secret cafe they've never seen, which ending fits best?

Get it right to open this lesson and 87 more in the app.

Course map

Where Natural Japanese Fluency takes you

Move beyond textbook phrases and start speaking like a local. Master the art of reading social cues, connecting your thoughts naturally, and navigating real-world Japanese conversations with confidence.

  1. 1

    Sounding Like a Local

    • Beyond 'Desu': Using Sentence Endings for Flavor
    • The Art of Omission: Speaking Without Subjects
    • Natural Fillers to Buy Thinking Time
    • Mastering the Rhythm of Double Consonants
  2. 2

    Connecting Complex Thoughts

    • Linking Actions with the 'Te' Form
    • Expressing Reasons Without Sounding Robotic
    • Describing Sequences and Simultaneous Actions
    • Contrasting Ideas Using Soft Transitions
    • Using 'If' and 'When' for Different Scenarios
    • Giving and Receiving Favors Through Verbs
  3. 3

    Navigating Social Situations

    • Politeness Levels: When to Switch Gears
    • The Language of Refusing Without Saying 'No'
    • Humble vs. Respectful Speech Basics
  4. 4

    Reading Between the Lines

    • Understanding Context Clues in Fast Speech
    • Interpreting Silent Responses and Pauses
    • Common Idioms for Daily Life
    • Visual Cues: Reading Signs and Menus
    • Onomatopoeia: Words That Mimic Feelings and Sounds
  5. 5

    The Mechanics of Meaning

    • How Kanji Radicals Tell a Story
    • Transitive vs. Intransitive: Who Did What?
    • The Logic of Passive and Causative Sentences
    • Formal Grammar Patterns in Writing

5 sections · 22 units · 88 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
Explain Like I'm 5

Natural Japanese Fluency is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

Keep going

More Language on Tomo

Fluent Spanish: Beyond the Basics course icon

Fluent Spanish: Beyond the Basics

Professor

Stop translating in your head and start feeling the rhythm of the language. Master the art of natural conversation, subtle emotional cues, and the hidden logic of native speakers.

88 levels2h 56mIntermediate
Speak Like a Local: Beyond the Basics course icon

Speak Like a Local: Beyond the Basics

Bestie

Move past textbook phrases and start expressing your true personality in English. Master the natural rhythms, shortcuts, and social cues that make conversations flow effortlessly.

24 levels48mIntermediate
Natural English Fluency course icon

Natural English Fluency

Storyteller

Move beyond textbook grammar and start speaking like a local. Master the subtle rhythms, cultural shortcuts, and social nuances that make English feel like your own language.

170 levels5h 40mIntermediate
Hindi: Beyond the Basics course icon

Hindi: Beyond the Basics

Professor

Move past simple greetings and start expressing your opinions, sharing stories, and navigating real-world Indian social life with confidence. Learn to handle complex social situations and understand the nuances of daily conversation.

54 levels1h 48mIntermediate
Vietnamese: The Natural Flow course icon

Vietnamese: The Natural Flow

Storyteller

Move beyond basic phrases and master the rhythmic, social, and idiomatic heart of Vietnamese. Learn to navigate complex kinship hierarchies, regional dialects, and the subtle particles that give the language its unique flavor.

95 levels3h 10mIntermediate
Tagalog: Speak Like a Local course icon

Tagalog: Speak Like a Local

Bestie

Move beyond textbook phrases and master the rhythm of real Manila street talk. Learn to express emotion, use particles naturally, and navigate social nuances like a native speaker.

165 levels5h 30mIntermediate
Start free

Start Natural Japanese Fluency today.

Download Tomo, search Natural Japanese Fluency, and play your first lesson in under a minute.